Valve



Nov. 4, 1930. J. R. REPLOGLE VALVE Original Filed Feb. 28, 1921 A TTOIP/VEK Patented Nov. 4, 1930 \UNITED STATES PATENT OFFICE JOHN B.REILOGLE, OF DETROIT, MICHIGAN, ASSIGNOR TO KELVINATOR CORPORA- TION, OFDETROIT, MICHIGAN, A CORPORATION OF MICHIGAN VALVE Original applicationfiled Iebruary 28, 1921, Serial No. 448,331. Divided and thisapplication filed January 31, 1927. Serial No. 164,739.

This invention relates to valves, and more particularly to valves whichare adapted for use in refrigerating systems. This application is adivisional of my copending applica- 6 tion Serial No. 448,331, filedFebruary 28,

An object of this invention is to provide a valve which is simple inconstruction, can be easily manufactured, and is highly effective inoperation.

Another object of this invention is to provide an improved valve, whichcan be incorporated in a refrigerating system, and can be used invarious ways to charge portions of the system with suitable fluid and isso constructed that no fluid will be lost from the system thereb Anotherob ect is to provide a valve having an improved packing and sealingmeans for the valve stem such that the escape of liquid along the valvestem is prevented all times.

Other objects more or less incidental or ancillary to the foregoing willappear from an examination of the following description taken inconnection with accompanying drawings in which:

The single figure shown is a transverse sectional view of my device.

The specific application of the device shown is that of a charging valvefor a refrigerating system. The device comprises a bod portion 1 havinga passage 2 therethroug for the circulation of fluid. The body portion 1has tubular extensions 3 and 4 formed thereon. The interior of thesetubular extensions 3 and 4 are in communication with the passage 2 inthe body portion 1. Each of these extensions is connected by anysuitable means to pipes 5 and 6. These pipes may contain a'fluid whichis adapted to circulate therethrough and constitute a working part ofthe refrigerating system. A recess or chamber 7 is formed in theinterior of the body portion 1 and is in communication with the passage2 by means of an auxiliary passage or restricted opening 8. The bodyportion 1 has a tubular extension 9 formed thereon which has an aperture10 therein which is in communication with the recess 7 by means of apassage 11. This aperture 10 in the extension is adapted to be closed bymeans of a tapered screw threaded plug 12.

A second tubular extension 14 is formed on the body portion 1 andcommunicates with the recess 7 in the interior of the body portion 1 bymeans of a screw threaded opening 15 formed in the body portion 1. Thestem 16 of a needle valve 17 extends through this opening 15 and hasscrew threads 18 formed thereon to engage the threads in this opening.The needle valve 17 seats in the upper end 20 of the auxiliary passageor restricted opening 8, and is'adapted to control the flow of fluidbetween the passage 2 and the recess 7. The upper end 21 of the valvestem 16 is squared for the reception of a tool or the like for turningthe valve stem so as to seat and unseat the valve. The extension 14 hasan enlarged screw threaded passage 22 therethrough which is acontinuation of the screw threaded opening 15 in the body portion 1.

A packing means 23 for the valve stem 16 is placed around the same andis secured in place by means of a gland nut 24 which engages the screwthreaded walls of the passage 22. The outer end of this screw threadedpassage terminates in a tapered screw threaded portion 25 which isadapted to receive a corresponding screw'threaded tapered portion 26 ofa plug 27, thereby providing an absolutely air tight closure between theatmosphere and the interior of the extension 14.

The body portion 1, and extensions 3, 4, 9

and 14 may be formed in a one piece casting as shown.

- When it is desired that the system should be charged, the plug 12,;isunscrewed from the tubular extension 9 and the nozzle of a chargingapparatus (not shown) is secured to the extension. The plug 27 is thenre moved and the needle valve 17 is opened by means of some suitabletool engaging the squared end portion 21 of the valve stem 16. As iscustomary in the charging operation, the air in the system to be chargedis first exhausted therefrom and then the system is charged with somesuitable fluid. After the chargingoperation has been completed, the

needle valve is again closed, the charging ap- 100 paratus removed, andthe plugs 12 and 27 secured in position.

It will be readily seen that the needle valve constitutes a cut-offvalve between the aperture 10 in the extension 9 and the passage 2 whilethe charging apparatus is operatively connected to the valve structure.It will thus be seen that in the broader aspects of my invention it isnot necessary that the device shown and described be limited to acharging valve as any other suitable conduit can be secured to theextension 9 and the needle Valve act as a cut-off between this conduitand the passage 2. v

In the application of my device it is obvious that it can be used invarious ways. Thus, the pipes 5 and 6 might be the ordinary pipes forcirculating the working-fluid in a closed refrigerating system, or onthe other hand, these pipes might be the pipes w ch connect a fluidoperated thermostat with a sylphon control means fora motor switch. Infact, the device in question has numerous applications which will beapparent to those skilled in the art.

The packing means and gland nut provide a particularlyefiective fluidtight joint between the extension and the valve stem. The packing glandisadequate during the brief intervals when the plug 27 must be removedto give access to'the valve stem, and when the plug is replaced andscrewed home, its ta- I pered form provides an absolutely tightclosranged exteriorly of said ure. The double seal thus formed by thepacking and plug adequately prevents leakage around the valve stem underall conditions. Thus, while the seated valve is normally interposedbetween the worln'ng fluid and the valve packing, in case of leakagepast the valve the double seal referred to effectively prevents loss offluid.

While I have shown and described in some detail the preferredconstruction and preferred arrangement of the parts, it will beunderstood that in all respects there can be wide variations withoutdeparting from the invention as defined in the appended claims.

VVhat I claim as my invention is 1. A valve fitting for refrigeratingsystems comprising a single piece casting provided with an outletadapted to be secured to the inlet port of a refrigerating system, anintake tubular portion adapted to receive the return pipe of saidsystem, said casting being provided with a circulation passagecommunicating with said outlet and intake connections, 'a tubularextension formed integral with said casting and communicating with saidcirculation passage, said extension being adapted to be connected to anexhausting and charging apparatus, and a manipulative valve forcontrolling the communication between sa d exhausting and chargingextension and said circulation passage, said valve being arcirculationpassage.

ing and adapted to be connected to a charging apparatus, a valvecontrolled bore connecting said charging extension with said chamber,said valve being arranged exteriorly of said chamber.

3. A. valve fitting for refrigerating systems comprising a single piececasting having a body portion formed with a 01101113- tion passage andhaving inlet and outlet extensions communicating with said circulationpassage and adapted to be connected to the respective terminals of arefrigerating system, and a tubular charging and exhausting extension,and a valve-controlled bore connecting the circulation passage and saidcharging and exhausting extension, sald valve being arranged interiorlyofsaid extension and exteriorly of said passage.

4. A charging, exhausting, and circulating refrigeration fittingcomprising a casting provided with an integral circulation passage and atubular charging and exhaustlng extension, and a valve-controlled boreconnecting the circulation passage with sa d charging and exhaustingextension, said valve being arranged interiorly of said ex tensionandexteriorl of said passage.

5. A charging, ex austing, and circulating refrigeration fittingcomprising a casting provided with n integral circulatlon passage and aplurality of tubular extensions,

one of which is adapted to be connected to a char ing and exhaustingdevice, and a valvecontrolled bore connecting said circulation passageand said charging and exhausting extension, said valve being arrangedinteriorly of said casting and exteriorly of said passage.

6. A charging, exhausting, and circulating refrigeration fittingcomprisinga casting provided with an integral circulation passage and aplurality of tubular extensions, one of which is adapted to be connectedto a charging and exhausting device, a valve-controlled bore connectingsaid circulation passage and said charging and exhausting extension, anda detachable cap for sealing said charging and exhausting exten- S1011.

7. A valve mechanism comprising a body portion having a circulatingpassage therethrough; an integral extension formed on the said bodyportion and having an opening therethrough communicating at its innerend with a passageway in the said body portion, the said body portionhaving an auxiliary passageway therein connecting the said first namedpassage with the said circulating passage; a valve for controlling thisauxillary passagewa having a stem extending through-the bo y portion,said valve being arranged exteriorly of said circulating passage and thepassageway in said body portion.

8. In a valve mechanism, a body portion having a main passagetherethrough; an auxiliary passage communicating with' sald main passageat one end and openin at its other end into a central chamber; a purality of extensions integral with said bod portion and having passagestherethroug communicatin with the said central chamber in the said bodportion; a needle valve in one of the said astnamed passages for closingsaid auxiliary passage; and a removable plug for closing the said lastnamed passage. 9. In a charging device a body portion having a mainpassage therethrough and an 4 auxiliary passage communicating with saidmain passage, a laterally extending projection on said body portion,said projection being provided with two passages communicating with saidauxiliary passage, a needle va v e in one of said last named passagesfor, closing said aux liary passage, and a removable plug for closingthe other of said last named passages, substantially as shown anddescribed.

10. A charging, exhausting, and circulating refrigeration fitting,comprising a body provided with a circu ation passage and a lurality ofextensions, one of said extensions ing adapted to be connected to a charg and exhaustin device, a valve-control fire connecting sai circulationpassage and said charging .and exhausting extension, said valve beingarranged exteriorly of said circulation passage, and a detachable capfor sealing said charging and exhausting extension. In testimonywhereof, I hereunto afix my signature. v I

JOHN R. REPLOGLEQ

